Montana bowl

Skier triggered windslab Size 2 happened today in Montana bowl. NW aspect, 2330m elevation. Fractured 50 meters wide, ran 150 meters with a 30cm depth. One person involved got knocked down and partially buried but was able to stand up as avalanche came to a stop. The windslab was very isolated, other buddy in group skied a very similar line, same face/aspect/elevation just 30 meters over and had no results other than minor sluff. No injuries No other avalanche activity observed